barker



(No Model.) 5 Sheets-Sheet 1.

H.C.BARKER.

BRIGK MACHINE.

.No. 548,287. I Patented Oct. 22, 1895.

ANDREW BGRAHAM. PHUTO-UTHQWASHINGTOMDC (N0 Mode li)" 5' Sheets-Sheet 2.

H. G. BARKER.

BRICK MACHINE.

w M m m v m n Z P (No Model.) 5 Sheets-Sheet 3. H. O. BARKER. BRICK MACHINE.

Patented' Oct. 22, 1895.

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(No Mod i.

Patented Oct. 22, 1-895.

M. PHOYO-UTNQWASNINGTOMRC No Model.) 5 SheetsSheet 5.

H. O. BARKER. BRIOK MACHINE.

No. 548,287. Patented Oct. 22, 1895.

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UNITED STATES PATENT OFFICE.

HENRY O. BARKER, OF ST. LOUIS, MISSOURI, A SSIGNOR TO THE STANDARD FOUNDRY COMPANY.

BRICK-MACHINE.

SPECIFICATION forming part of Letters Patent No. 548,287, dated October 22, 1895.

Application filed April 30, 1894:- Serial No. 509,618. (No model.)

To all whom it may concern:

Be it known that I, HENRY C. BARKER, of St. Louis, in the State of Missouri, have made a certain new and useful Improvement in Brick-Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to certain improvements in brick-machines; and my invention consists in features of novelty hereinafter fully described, and pointed out in the claims.

Figure I is a side elevation of my improved machine with part of the frame broken away and showing the charger in its forward position. Fig. II is a side elevation, part in section, and showing the charger in its rear position. Fig. III is a vertical section taken on line III III, Fig. IV. Fig. IV is a rear elevation, parts of the mechanism being omitted. Fig. V is a front elevation, part in section, taken on line V V, Fig. II. Fig. VI is a part in plan view and a part in horizontal section taken on line VI VI, Fig. II. Fig. VII is a detail horizontal section taken on line VII VII, Fig. II. Fig. VIII is a detail horizontal section taken on line VIII VIII, Fig. I.

Referring to the drawings, 1 represents the bed-plate of the machine.

2 represents the sides of the machine; 3, the driving-shaft journaled in boxes 4; 5, the driving'pulley, and 8 a pinion on the shaft 3, and which engages with a cog-wheel 9, mounted on a counter-shaft 10, which is journaled in boxes 11. The outer box 11 is secured to a frame 12, resting upon a lateral extension 13 of the bed-plate l, and the outer box 11 is secured to this lateral extension of the bed-plate, as shown in Figs. I, II, and VI. The frame 12 is braced to theinner side piece 2 by means of bolts or rods 14. The cap of the inner journal-box 11 is held to the bed-plate by means of vertical rods-15.

16 represents the mold of the machine, 17 the upper plunger, and 18 the lower plunger. The upper plunger is connected by links 19 to the outer end of a lever 20, which is journaled at 21 to the sides of the machine, the links 19 having a pivotal connection 22 with the lever and having a fixed connection with the upper plunger by means of pins 23. The

upper plunger is capable of being swung out into the position shown in Fig. I, and when it swings back to its vertical or normal position its movement is arrested by bars 24, cast upon or secured thereto and the ends of which impinge against brackets 25, secured to the sides of the machine. (See Fig. VI.)

26 represents the charger of the machine, to which are journaled rollers 27, which as the charger advances come against the lower cross-bar 24 (see Fig. I) and force the upper plunger into the position shown in Fig. I.

The lower plunger is connected by means of links 28 to a lever 29, pivoted at 30 to the sides of the machine, the upper ends of the links 28 fitting in sockets in the bottom of the lower plunger and held therein by means of a pin 31. The lower ends of the links 28 have slots 32, that receive a pin 33, which connects the links to the lever. This slot-and-pin connection between the links 28 and thelever 29 permits the lower plunger to be raised after the pressing is done for the purpose of ejecting the bricks from the mold.

It will be noted that the outer ends of the levers 20 and 29 are slotted to receive the links 19 and 28, respectively, as shown in Fig. III.

35 represents a pitman connected by a crank-pin 36 to the cog-wheel 9. On the inner end of the pitman 35 is a head 37.

38 represents a link connecting the inner end of the upper lever 20 to the head 37 of the pitman,and 39 represents a link connecting the inner end of the lower lever 29 to the head 37 of the pitman. It will thus be seen that as the cog-wheel 9 is revolved the inner ends of the levers 20 and 29 will be caused to move to and from each other, and the upper and lower plungers will thus be made to ad-- Vance into and recede from the mold.

The inner end of the pitman 35 is supported by the link 40, pivoted at 41 to a block 42, secured to the bed-plate of the machine, and the upper end of the lever 40 issecured by a bolt 43 to the head 37 of the pitman. The block 42 has a slot-and-pin connection 44 with the bed-plate, and fitted in the .top of the block 42 are adjusting-screws 45, by which the block may be adjusted in a vertical direction. By adjusting the block the inner ends of the two levers 20 and 29 maybe raised or lowered, while their relative distance apart is not afiected or changed, and thus the position of the plungers in the mold when the final pressureis made may be changed, so that if one part of the mold becomes rough or worn the point of final pressure of the bricks may be shifted to another part of the mold.

As the head 37 of the pitman advances from the position shown in Fig. II, the friction-roller 46 on the cog-wheel 9 comesin contact with the end 47 of a lever 48, which is pivoted to the sides of the frame of the machine by means of a rod or shaft 49, beyond which the lever has a projecting point 50, extending beneath one Wing 51 of the lower plunger. (See Fig. VII.) The lever 48 is rigidly secured to the shaft 49, and on thisshaft there is also rigidly secured an arm 52, which projects beneath the other wing 53 of the lower plunger. As the inner end of the lever 48 is depressed by the roller 46, thelower plunger is raised by the lever and the arm 52 to lift the bricks out of the mold, this movement of the lower plunger being permitted by the slot-and-pin connection between the links 28 and the lever 29. The parts are so disposed and arranged that the roller 46 comes against the lever 48 just as the finalpressure is completed and the upper plunger beginsto ascend. The wings 51 and 53 of the lower plunger are held and guided between the front ends of the sides of the machine and brackets 54, which are bolted to the sides of the machine, as shown in Fig. VII.

Just as the bricks reach the top of the mold a pin or projection 55 on the head 37 of the pitman 35 comes against the bearing-face 56 of the hook 57. It is pivoted at 58 to the charger, and the pitman continuing to advance the charger is forced forward to the position shown in Fig. I, thereby removing the bricks from over the mold and at the same time refilling the mold with fresh clay. As the pitman 35 recedes the charger is drawn back to its rear position by the hook 57 engaging with the pin 55 on the head 37 of the pitman, as shown in Fig. I. As the charger reaches its rear position the inclined end 59 of the hook 57 comes against the plate 60, secured to a crosspiece 61, that is made fast to the sides of the machine, (see Fig. V1,) and the hook is thus raised out of engagement with the pin 55, so that the rearward movement of the charger ceases, while the pitman 35 continues to move rearwardly to force the plungers into the mold and press the bricks. The plate 60 is secured to the crosspiece 61 by means of set-screws 62 fitting in the slot 63 in the plate 60. By loosening these setscrews the plate 60 may be adjusted so as to engage the hook 57 sooner or later, and thus the distance of movement of the charger may be regulated.

I have spoken of the hook 57 and plate 60 in the singular number and but one hook and plate may be used, although I prefer to use a pair of them, as shown in Fig. VI.

represents a frame forlimiting the downward movement of the lower plunger. (See Figs. II and VIII.) This frame is mounted loosely on a shaft or rod 71 fixed to the sides of the machine.

72 represents a set-screw passing down through the top of the bed-plate and the lower end of which bears against a cushion 73 set into the frame 70. The ends of the frame 70 are each provided with acushion 74 to receive the reduced rounded ends 75 of the wings 51 and 53 of the lower plunger. It will thus be seen that as the roller 46 leaves the end of the lever 47 the lower plunger will drop until the ends 75 of the plunger-wings come against the ends of the frame 70, and the descent of thelower plunger will then be arrested, and the distance the plunger falls may be regulated by moving the set-screw 72.

I claim as my invention 1. In a brick machine, the combination of upper and lower plungers, levers connected to the plungers, a gear wheel, a pitman, a link connection between the gear wheel and the levers, a charger, a hook pivoted to the charger and adapted to be engaged by a projection on the pitman, and across piece having an adjustable plate against which the inclined endof said hook is adapted to engage, substantially as and for the purpose set forth.

2. In a brick machine, the combination of upper and lower plungers, an upper lever to which the upper plunger is connected, alower lever, links connected to the lower plunger and having slot and pin connection with the last mentioned lever, a gear wheel, a connection between the gear wheel and said levers, a roller connected to the gear wheel, a lever with which said roller engages, a shaft to which the last mentioned lever is secured, a projecting point on said lever engaging with one wing of the lower plunger,and an arm secured to said shaft and engaging the other wing of the lower plunger, substantially as and for the purpose set forth.

HENRY C. BARKER. In presence of r E. S. KNIGHT,

A. M. EBERSOLE.

ICC

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